A comparison of mechanisms for improving TCP performance over wireless links
IEEE/ACM Transactions on Networking (TON)
Analysis of TCP performance over mobile ad hoc networks
Wireless Networks - Selected Papers from Mobicom'99
ATP: a reliable transport protocol for ad-hoc networks
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Enhancing TCP fairness in ad hoc wireless networks using neighborhood RED
Proceedings of the 9th annual international conference on Mobile computing and networking
Ad Hoc Wireless Networks: Architectures and Protocols
Ad Hoc Wireless Networks: Architectures and Protocols
The Impact of Multihop Wireless Channel on TCP Performance
IEEE Transactions on Mobile Computing
TCP with adaptive pacing for multihop wireless networks
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
Wireless mesh networks: a survey
Computer Networks and ISDN Systems
Measurement driven deployment of a two-tier urban mesh access network
Proceedings of the 4th international conference on Mobile systems, applications and services
AR-TCP: a loss-aware adaptive rate based TCP for ad hoc wireless networks
Journal of High Speed Networks - Special issue on trusted internet workshop (TIW) 2004
Gateway adaptive pacing for TCP across multihop wireless networks and the Internet
Proceedings of the 9th ACM international symposium on Modeling analysis and simulation of wireless and mobile systems
Understanding bandwidth-delay product in mobile ad hoc networks
Computer Communications
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In this paper, we study the performance of a static multihop wireless network, specifically that of the backhaul network of a two-tier Wireless Mesh Network (WMN) operating on IEEE 802.11 Medium Access Control (MAC) protocol. The performance of an IEEE 802.11 based backhaul network is greatly affected by the MAC contention and congestion in the network. If the sources pump data into the network than can be supported, loss rate increases due to MAC contention and congestion in the network. This also leads to the problem of unfairness among flows. In this paper, we propose a Link Layer Adaptive Pacing (LLAP) scheme that adaptively controls the offered load into the network. This improves the performance of higher layer protocols without any modifications to them. Our LLAP scheme estimates the four hop transmission delay in the network path without incurring any additional overhead (Control packets) and accordingly paces the packet transmissions to reduce MAC contentions in the network. We implement the LLAP scheme in ns-2.29 network simulator and extensively study its performance for both User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) traffic in different network scenarios. In all the cases, our scheme shows a significant improvement in the performance of both UDP and TCP traffic.